Keyboard



FIG. 1 is a front elevational view of a keyboard showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is an enlarged partial perspective view taken along line 7—7 ofFIG. 6.

The broken lines are shown in the views for illustrative purposes onlyand form no part of the claimed design.

The ornamental design for a keyboard, as shown and described.